Attachment for beverage mixers



C. FERGUSON ATTACHMENT FOR BEVERAGE MIXERS Filed Feb. 24, 1925 IA .llllllfllllrlllll INVENTOR. (kn/n E'S/Z-FGUSON BY lf A TTORNEYS.

' which form Patented Apr. 5,1927.

UN-ITED STA TES P T-enr- OFFICE.

cnnnnns rnnevson, or sroxnmwnsnrneron.

arrncnnnnr ron Application filed February This invention relates to im rovements in mixers for beverages and t e like. The general object. of the invention is the provision of a means for modifying, when required, the temperature of a beverage either preparatory, subsequentjor during the operatingof'mixing the same.

Other objects Wlll appear andbe better understood 'from' that embodimentof my invention of which the following is 'a description, reference ,to' be made to the, drawings part-of the description and in which;

" Figure 1- is a vertical cross-section of a -in vertlcal ores-section and in beverage mixer showing my device partly side elevation and applied thereto.

Figure.2 is aplan view of Figure 1,. and

ure 3 is a sectional plan view on the line II-III of Figure" 1, looking in the direction ofthe arrows.

' 'In the drawings 5 indicatesthe conven- '1 during the'op the button 7 to agitate and therebymix the, beverage.

support 9 tion'alform of receptacle used. in connection with the mixing of beverages such as malted milkand the like. An agitator shaft 6 terminating at its' lower end in a head 7 extends downwardlythrough the upper open end of receptacle 5 and into-the fluid constituting the beverage 8. In practical'u'se theshaftis operated electro-mechanically by a" motor, not shown, to which it is suitably, connected so that it may be glevated for an appreciable distance with res ectto the beverage 8 in 4 order that adjustment-of the receptacle 5 into the position shown in Figure 1 and also the removal of the receptacle may be effooted. The

arts thus far described arefof old and well itnown construction, and are in every day use in connection. with'so-called soda fountains; abracket", not shown, being usuallyprovided for the receptacle 5- for holding it in. he position shown in Figure 'eration of the shaft 6 and nnvnanen mums.

24, 1925. Serial Kaine.-

. sions 11 bein so proportioned as to permit of the extensions 11 yielding-outwardly in the operation of attaching the support'to the receptacle and therebyoperating by their own resiliency to bind on the receptacle.

The central provided wit which shaft 6 extends and a oss 14 connected to shaft- 6 is provided forthe purpose of preventing upward displacement'of the lportion 12' of the support 9 is a central open'in 13 through,

shaft with-respect to the support and further] providing an enlargement for engaging the support and moving the same upwardly when the shaft is elevated in the operation of detachingthe support from the "recap taole. 15 indicates generally a hollow core.

This element is by preference formed of metal of good heat conductivity and is provided with a cylindrical chamber 16 formed 'by the concentric circular sidewalls 17 and '18 each of which isimperforate and continuous.- The bottom plate '19 connects the lower ends of theside walls, 17 and 18 and} I a top plate 20 connects the upperends of these walls, the said top 'and bottom platjes by their presence operating in conjunction with the side walls 17 and 18 to render the chamber 16 fluid tight. An annular tubular manifold21 is disposed in the upper endof chamber 16 and is supported therein in any suitable manner as by an inlet or feed pipe 22 which extends through support 9 to which it is suitably fastened'against independent .movement, -and-through top late 20 andto manifold 21 to whichit is fixed y secured and connected so as to communicate with the in-' terior, of the ,manifold; any suitable construction being provided for effecting. a tight 1 joint between the parts. A series of tubular extensions 23 depend from manifold '21 and 1 each of these extensions is provided with a plurality of perforations 24. The tubular extensions 23 may extend for substantially The connection between the upper ends 23 the length of chamber 16 and may, if so de--- sired, beopen at their lower ends as shown.

and the manifold 21 is such fthat the exten sions"23 communicate with the interior of the manifold. An exhaust herein shown in the form of a tube 25 extends upwardly from the core 15 preferably from the top wall20 thereof and passes through an opening in which it issnugly fitted in the sup.- port 9,'the upper 9 en end. otithe exhaust communicating Twit the atmosphere. A

flexible connection 26. is established between.

the upper end of-feed pipe 22,;and a suitable source of supply. When the device is to be used as a medium for lowering the termperature of beverages, the-connection 26 which may be of rubber, or rubberized tubing, or its equivalent, will at one end be suitably connected to a fluid pressure tank containing liquefied carbon dioxide or the equivalent of such as is used in connection with the preparation of beverages. A suitable coupling 27 is employed for connecting the extension 26 to the upper end of pipe 22'and operates to prevent leakage at the joint, the flexible connection 26 being provided for the purpose of permitting the shaft 6 and the I parts connected thereto to be elevated.

With this construction it is obvious that when fluid such as liquid carbon dioxide is directed into chamber 16 through pipe 22 and the parts connected thereto, it is con verted into the gaseous state. ThlS .transformation causes the absorption of heat from the wall of the chamber and a conse uent reduction in the temperature of the b0 y of beverage 8.

This cooling action may take place either before or after the mixing of the beverage or during the operation of mixing the same by the action of shaft 6 and button 7 As shown in Figure 1, a scraper is provided for removing particles of liquid which may freezeon the outer surfaces of core 15. This scraper operates in unison with shaft 6 by rotating therewith and may be economically constructed by imparting to a single length of wire substantially the contour of a U, the limbs 28' and 29 of which are disposed in proximity to the concentric faces of core 15 and one being connected to the shaft 6 by having its upper end'bent at right angles as indicated at 30 and fixedly secured to the shaft. A supplemental brace 31 may be provided for connecting the lower end portion of the limb 29 tothe lower end portion of shaft 6. This connection between the scraper and shaft 6 provides for the rotation of the scraper with the shaft. The device thus far described is not limited for use in connection with a means for cooling the beverage contained'in receptacle 5 but may be readily adapted for functioning as a heater where in instances it is-desirable to serve a heated beverage. In this connection the flexible connection 26 may be connected to a suitable reservoir such as a steam boiler, not shown, and thefeby convey the steam to the chamber 15 in themanner described in connection with carbonic acid gas. Further the device may be adapted for carbonating liquids for beverage purposes such as water or the like by providing a valve controlled by-pass 32, one end of which is connected to feed pipe 22 and the opposite (and directed downwardly so as to be immersed in the beverage 8 when the support is positioned as shown in Figure 1. For purposes of illustration I have shown the by-pass 32 as being directed downwardly through the chamber 16 and extending through the bottom plate 19 thereof, the valve 33 being provided for controlling the passage of the fluid through the by-pass 32.

In operation the support 9 is first elevated above the receptacle 5 and when the same is adjusted on the'usual shelf or bracket, not shown, and in alinement with receptacle 5, the support and the parts connected thereto are lowered and this action on the part of the same closes through a switch, not shown, of the usual electric circuit to the motor, not shown, which operates shaft 6. The usual valve .on the reservoir for the carbonic acid gas, or the heating agent or the like, as the case may be, and not herein shown, is then opened and fluid permitted thereby to enter chamber 16.

Although I have described an ideal construction for effecting the foregoing results,

it should be understood that various changes may be made within the scope of the appended claims without departing from the spirit of the invention.

I claim:

1. In a beverage dispensing apparatus, the combination of a receptacle for holding the beverage to be dispensed, of means extensible into the receptacle and immersible in the beverage for-modifying the temperature thereof and including a tube, and means for circulating fluid under pressure through the tube and through the surrounding beverage.

2. In a beverage dispensing apparatus,. the combination of a receptacle for holding the beverage to be dispensed, of means extensible into the receptacle and immersible in the beverage for modifyin the temperature thereof and including a ollow core, a tube within the core, and means for circulating fluid under pressure through the tube and outwardly through the core and into the beverage surrounding the core.

3. In a beverage dispensing apparatus. the combination of a' receptacle for holding the beverage to be dispensed, a support adapted to be connected to the receptacle, means extensible into the receptacle and immersible in the beverage and adapted for agitating the same, and means for modifying thetemperature of the beverage and including a tube connected to the support, and means for circulating fluid under pressure through the tube.

4. In a beverage dispensing ap aratus, the combination of a receptacle for holding the beverage to be dispensed, a support adapted to be connected to the receptacle, rotatable means extensible into the receptacle and inimersible in the beverage for agitating the same, means for modifying the temperature of the beverage and includin a hollow core connected to the support an means for circulating fluid under pressure throu h the core.

5. 5 a bevera e dispensing apparatus, the combination 0% a receptacle for holding the beverage to be dispensed, of a support extensible overv the upper end of the receptacle, anag'itator carried by the su port 1 and extensible into the receptacle and 1m- 'means for circulating flui means for modifyin the temperature of the beverage and inclu ing a hollow core carried by the support and immersible in the beverage and surroundin under pressure through the core, and a scraper arranged for operatin upon the surface of the core and connect to the itator.

' CIfARLE'S FERGUSON mersible in the beverage contained therein,

the agitator, 

